<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            padding: 0;
            margin: 0;
        }
        html,body{
            height: 100%;
            width: 100%;
        }
        div{
            background: url(./u=3096290939\,959416705&fm=253&fmt=auto&app=120&f=JPEG.webp) no-repeat;
            width: 100%;
            float: left;
            margin-left: 15%;
            height: 100%;
        }
        .deng{
            border: 1px solid black;
            width: 30%;
            height: 40%;
            opacity: 50%;
            float: left;
            margin: 10% 22%;
            border: none;
            border-radius: 50px;
        }
        .ding{
            width: 50%;
            height: 50px;
            border: none;
            text-align: center;
            opacity: 100%;
            color: white;
            margin: 8% 25%;
            font-size: 25px;
            border-bottom: 2px solid white;
        }
        .shou{
            border: 1px solid white;
            width: 50%;
            height: 30px;
            background-color: transparent;
            margin: -5% 25%;
            border-radius: 50px;
        }
        .mi{
            border: 1px solid white;
            width: 50%;
            height: 30px;
            background-color: transparent;
            margin: 7% 25%;
            border-radius: 50px;
        }
        .dibu{
            width: 50%;
            height: 30px;
            margin: -5% 25%;
            border-radius: 50px;
        }
        
    </style>
</head>
<body>
    <div>
        <div class="deng">
            <form action="#">
               <header>
                   <h3 class="ding">套利宝CRM管理系统</h3>
                </header>
                <article>
                    <input type="text" placeholder="请输入手机号" class="shou">
                    <input type="password" placeholder="请输入密码" class="mi">
                </article>
                <footer>
                    <input type="button" value="登录" class="dibu">
                </footer>
                
            </form>
        </div>
    </div>
</body>
</html>